package cn.anquing.principle.liskovSubstitutionPrinciple.demo4;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;

public class Father2 {

    public List doSomething(HashMap map){
        System.out.println("父类被执行...");
        return new ArrayList();
    }
}
